Can-head-cutting machine.



PATENTED OCT. 22. 1907.l

f M. J. PERREN.

N HEAD CUTTING MACHINE.

APPLICATION FILED APB. 18. 1907.

3 SHEETS-SHEET l.

No. 869,075. PATENTE!) OCT. 22. 1907.

. M. J. FERREN.

GAN HEAD CUTTING MACHNE.

APPLIOATIOH FILED 23.18. m07.

3 SHEETS-SHEET 2.

Ilill ill I Il @mim/mozo f No. 869,075. PATENTED'OCT. 22. 1907. M. J. PBRREN.

GAN HEAD CUTTING MACHINE. APrLIoATIoH FILED APB.1B.1907.

3 SHEETS-SHEET 3.

UNITED MAQ/is; PATENT OFFICE.

MYRON .'I. FERREN, OF WASHINGTON, DISTRICT OF COLUMBIA.

GAN-HEAD-CUTTING MACHINE.

Specification of Letters Patent.

Patentes' oct. 2a, 1907.

Application filed April 18| 1907- Serial No. 368.328.'

. the following is a specification, reference being had therein to the accompanying drawing.

My invention `relates to machines for cutting the heads of-cans of `the type disclosed in United States Letters Patent No. 836,744, granted to me November 27, 1906.

One of the primary objects of my present invention is to provide a mechanism in which the movement of the can will not interfere to any extent with the movement of the cutter and vice versa.

Other objects of the invention will become apparent as the preferred embodiment, illustrated in the accompanyin g drawings, is described in detail hereinafter.

'particularly pointed out in the claims.

In the accompanying drawings which illustrate one embodiment of my invention Figure is a perspective view of the device. Fig. 2 is aside elevation thereof. Fig. 3-is a rear elevation. Fig'. 4 is a detail sectional view. Fig. 5 is a detail view of a modification. Fig. 6 is a detail view of a modification and Fig. 7 is a detail view of the indicator plate.

The frame of the device may be of any suitable form, that illustrated including a base a supported by suitable legs and two standards b c rising from the base.`

The can to be operated upon is directly shifted by two knurled disks d e which engage the peripheral beads at its opposite ends. As herein illustrated, the upper disk is fixed to one end of a shaft f, suitably journaled in the standards b c, carrying abevel pinion g. which intermeshes with a companion pinion on the` upper end of a counter-shafth which is stepped at its-lower end ina suitable socket in the base aand is journaled at its upper end in a horizontal web extending between the lstandards b c and preferably cast integral there-V with. The lower disk e is arranged in vertical alinement with the disk d and is fixed to the outer end of a shaft journaled intermediate of its ends in a bracket i, this shaft carrying at its inner end a bevel gear m permanently held in mesh with a companion bevelgear splined to the counter-shaft h. The bracket 'i and associated lparts are vertically adjustable for the purpose of moving. the -disk e toward and from the disk d in order to accommodate cans of varying heights and thisadjustment is effected in the illustrated form of the invention by means of arack bar n depending from the bracket which is engaged by a pinion o carried bya hand operated shaft p. This shaft is suitably journaled in the base and carriesa hand crank q. For' i holding the parts in adjusted position a pawl and ratchet are employed.

As illustrated in` Figs. `1, 2 and 3 the ratchet, designated r, is xed to the shaft p and is engaged by a pawl s pivoted to the base a. The front portion of the pawl is pressed in engagement with the ratchet by a suitable spring and the pawl is disengaged from the ratchet by pressing upon an extension or tail piece projecting beyond its pivot.

In the construction illustrated, in Fig. 5, the ratchet sov r is fixed to the base and the pawl or detent s is carried by the hand crank and is shifted out ofengagementl with the ratchet by a finger piece .s2 operated by the action used in grasping the handle of the crank t.

A platform t is carried by the bracket i, is preferably cast integral therewith and serves to assist in supporting the can under operation.

To further assist in retaining the can in place during the cutting action, a rest is provided at the rear of the disks d e and closely adjacent thereto. As illustrated in Figs. 1,' 2 and 3, this rest isprovided by circular flanges d e on the disks d e respectively and as illustrated in Fig. 6 the rest is provided by a plate g/ secured to the standard b and having a slot g2 to permit of the movement of the shaft f in the adjustment of the disk e. The rest thus provided serves to prevent the can turning about an axis through the points of engagement oi the disks d e therewith, and thereby acts to prevent the can from twisting or turning out of engagement with these disks.

The upper disk d is preferably yieldingly pressed toward the lower disk by suitable means, that herein illustrated, in Fig. 4, comprising a spring d4 held in a pocket in the standard b bearing at one end upon one end of the shaft and having a bearing at its opposite end against' a plug d2 threaded in the mouth of the pocket. This construction admits of the can rotating means accommodating irregularities in the beads at the ends of l the cans. The range of movement of the disk d is preferably in excessof the maximum required to accommodate such irregularities and it is desired that this disk occupy, when in engagement with the can, a position substantiallycentrally between the Alimits of its movement. To readily attain this object a suitable indicator is associated with the shaft f which coacts with a suitable graduation on the standard b to indicate the position of the shaft. This indicator is illustrated herein as a plate a, is `movably mounted on the standard b, is provid ed with a yoke a2 engaging a hub on pinion g, and is .provided with a finger a3 co-acting with a mark b :t on the standard b. v i

A cutter having a reciprocatoryr movement is employed in the illustrated embodiment of the invention, that shown, comprising a bar u guided on the front face of the standard b having its lower end provided with a arm d5 and a tail-.piece a extending beyond itspivot Vand a helical spring y interposed between the forward end ofthe arm and the standard c which tends to draw bevel knife edge working just iu advance of the disk fl and its upper end connected to a crank 'v carried by a shaft w journaled in the upper endsof standards b c.

As hereinbofore premised, my invention contemplates mechanism in which the movement of the can Will not interfere with the movement of the knife and vice versa and in the illustrated embodiment of my invention this object is obtained by mechanism for converting a substantially constant movement of an actuating element into a stop by step feed to the can feeding disk with intermediate intervals of rest, and into a re ciprocatory movement ofthe knife -timed to occur synchronously with said intervals of rest; periods of rest being provid ed between each reciprocation of the knife.

timed to occur synchronously with the feed movements of the can. trated embodiment of my invention for giving this movement comprises an element associated with `shaft 'w for oscillating the same, an clement associated wi th shaft f for rotating it and an element designed to-havol a constant movement during the cutting of the can, common ,to both of the first named elements, and designed to successively co-act therewith and impart successive .movements thereto. The clement associated with the shaft w is illustrated as a crank arm d5 and the-element associated with shaft c is illustrated as a star wheel lc. The element designed to have a continuous movement during the cutting operation ishorein illustrated as a disk x provided with a series of Aradial strike arms rc designed to successively co-act With the star Wheel'kl and crank d5 to shift the same as the element x isiro'- tated. In the illustrated embodiment of my invention a substantially continuous rotation is imparted to the element x during the cutting operation by means of a In the illustrated form of the ,invention the cutting movement of the knife occurs when the arm d5 is shifted by direct engagement with suitable hand lever. z.

one of the s trikerarms x and the return of the knife to its initial position may be attained independently of the striker arms or by Vlmechanism positively operated by the striker arm. In the illustrated form of the invention mechanism is shown for utilizing both means. The return mechanism illustrated comprises an arm l pivoted to a bracket c on the standard c, having a forward end a; designed to Wipe along the edge of the crank the end of the arm l down and therethroughserves to force the arm d5 against a stop c on the standard c. The tail piece of the armjis so positioned that immediately a striker arm passes out of engagement with the crank arm d5 it will engage said tail piece and vpositively tilt the arm Z to force the crank arm d5 back against the stop c during which movement the cutter bar will beraised. As will be understood, the spring alone -could be used and usually does operate, to return the crank arm d5 to its initial position but this return is insured by the co-y action of the striker arms with the tail of the wiper arm.

The spring employed is very light and is used 'primarilyJ `to hold the wiper arm'in'such position that the striker armswill co-act therewith".

As will be understood, all of the striker arms areentirely disengaged from the'star wheel lc While one of the arms is in engagement with the crankfarm d5 and vice The mechanism shown in the illusversa so that the during the movement of either the knife or can the other of the last named parts is at rest.

To reduce the wear on the contacting parts and to facilitate the operation of the machine, each of the striker arms .r is nrovided at its outer c nd With a laterally disposed rol] er' r which directlyrcngages the star Wheel and crank arm b5.

To )revent the can from movin from between the disks d c, during the feeding action', a suitable stop, or rest,v is adjustably secured to the standards which engages witlrtho can in advance of the feeding disks.A

view the extension is designated-h2. The latter conf struction not on y serves to resist any tendency of the can to tilt out of its proper perpendicular position but it also acts as a gage for the can in placing the saine between the4 feeding disk so as to insure the can being placed in an exact upright position.

My improved device will be understood from the Iforegoing description and it will be appreciated that the particular parts and arrangement shown may be- -modiiied Within a Wide range Without departing from the spirit and scope of the invention.

I claim:

1. In a can .cutting machine a cutter, a driving element, means actuated by the driving element for intermittently feeding the can and means also actuated by the driving,r

element for bringing the cutterinto operative engagement with the can between the feeding movements.

2. In a 'can cutting machine. .means for 'feeding the can step by step with intermediate periods of rest, and a cutter movable into and out of engagement with the can during said periods of rest.

3. In a can cutting machine, means for feeding the can step by step withl intermediate periods of restand a reciprocating cutter movable into and out of engagement with the can during the periods of rest.

i. In a can cuttingr machine an operating element having a substantially continuous movement imparted thereto, means for supporting' and rotating the can operated from said element to impart n step by step movement to the can, a cutter, and means operated by said element to actu-V ate the cutter at regular intervals.

In a can cutting machine, an-operating element havinf.,v a substantially continuous movement, means operated Y from the element for imparting successive feedingmov-ements to the can with intermediate periods of rest, a cutter, and means operated from said element for actuating the cutter at intervals, said intervals occurring synchronously with the periods of rest of the can.

i 6. Ina can cutting machine an operating element having a substantially continuous-movement, Ameans operated from the element for imparting Asuccessive feeding movements to the can with intermediate periods of rest, a cutter, means operated from .theelement for giving successive reciprocations to the cutter with intervals of rest, said lintervals of rest being timed to occur synchronously with the feeding movements of the can, said reciprocations of the cutter being timed to occur synchronously with the periods of rest of the can,

7. -.In a can'cutting machine, the combination-With' means for rotating the can comprising, disks engaging the ,'can, a drive-shaft carrying one of the disks, and means for transmitting the movement of tthe shaft to the other of the disks, of areciprocating cutter, a shaftfa crank carried by the shaft and connected to the cutter for reciprocating the cutter' as the shaft is oscillated, an element having a substantially continuous movement, and means for altermately moving` the can and knife during the'movement of the element comprising a star wheel on the drive-shaft, a crank arm on the cutter shaft, and striker arms on said continuous moving element, relatively arranged that when one of the arms is in engagement with the star wheel or crank arm the other arm will be out of engagement with the other of said parts.

8. In a can cutting machine a disk for moving the can,

a driveshaft for said disk, a reciprocatory cutter, a drive-- shaft therefor, an operating handle having a substantially continuous movement during the cutting operation, and

means for giving said shafts a series of 'alternating move- `ments interposed between said element and said shafts,

said interposed mechanism including a crank arm on the cutter shaft, a star wheel on the disk driving shaft and a series of striker arms movable -With the handle.

10. In a can cutting machine, means engaging the can to rotate the same, a drive shaft therefor, a star Wheel carried by said drive shaft, a cutter, a cutter shaft, a crank arm on the cutter shaft, a striker arm designed to shift said crank arm and star Wheel.- and a wiper arm co-acting with thepcrank arm for restoring the same to initial position, said-wiper arm having a part projecting into the path of movement lof the striker arm and adapted to be actuated thereby following ,its disengagement from the crank arm.

11. In a can cutting machine means engaging the can for feeding it, a drive shaft for said means, an actuating element carried by the shaft, .a cutter, a cutter shaft, a crank arm on said lcutter-shaft, a stop therefor, a pivoted wiper arm, a spring tending to hold the same against the crank arm and the latter against the stop, a striker arm designed to co-act with the crank arm .to shift the same in one direction, and a tail piece o n the wiper arm extending into the path of' movement traversed by the striker arm immediately following the disengagement of the latter from the crank arm. L

12. In a can cutting' machine v.a base, a standard rising therefrom having a guide slot therein,-a bracket guided in said slot, an upper disk for engaging the can, a lower` disk for engaging the c an, a shaft carrying the same journaled 'in said bracket, means for rotating the disk, and means for adjusting the bracket to move the lower disk toward and from the upper disk comprising a rack depending from the bracket, a pinion engaging the rack, a shaft carrying the pinion journaled in the base, and means for rotating the shaft.

13. In a can cutting machine, the combination with a cutter, of upper and lower disks engaging the can for supporting and shifting the same, means for rotating the disks, and a rest engaging the side of the can near the top of the same in advance of the disk, said rest having a vertical continuation co acting with the side of the can throughout substantially the entire length thereof.

14. In a can cutting machine, the combination with a cutter and means for actuating the same, of a lower feeding disk, an upper feeding disk lyieldingly pressed toward the lower disk, and an indicator associated with the upper disk.

15. In a can .cutting machine, the combination with a cutter, and means for actuating the same, of a lower feeding disk, an upper feeding disk mounted to have movement toward and from the lower feeding disk, a spring coperating with the upper feeding disk for yildingly pressing the same tward the lower feeding disk, anf. an indicator associated with the upper feeding disk for denoting the 'position'of the upper disk in its bearing, substantially as described.

In testimony whereof I aix my signature injpresence of two witnesses. v

v MYRON J. FERREN.

Witnesses:

JAMES M. SPEAK, -WILLIAM A. HALL. 

